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Please solve following question from PowerPlant Engineering :
Dry saturated steam at 40 bar expands isentropically to condenser pressure of 0.075 bar. Hot gases available at 2000K, 1 atm are used for steam generation and exhausted at 450K to ambient atmosphere which is at 300K and 1 atm. The heating rate provided by the gas stream is 100 MW. Use Cp(gas)= 1.1 KJ/KgK. Find exergy flow rate of inlet gas (in MW).